<!--富文本编辑器-->

<script setup>
import '@wangeditor/editor/dist/css/style.css' // 引入 css
import { onBeforeUnmount, ref, shallowRef, onMounted, watchEffect, watch } from 'vue'
import { Editor, Toolbar } from '@wangeditor/editor-for-vue'

// 声明属性
const props = defineProps({
  modelValue: {
    type: String,
    default: '',
  },
})

// 声明事件消息
const emits = defineEmits({
  update: (value) => {
    if (typeof value === 'string') {
      return true
    } else {
      console.warn(`Invalid prop: type check failed for event "update". Expected String, got ${typeof value}.`)
      return false
    }
  }
})

// 编辑器实例，必须用 shallowRef
const editorRef = shallowRef()

// 内容 HTML
const valueHtml = ref('<p>干饭了</p>')

// 当属性变化时，自动赋值给 valueHtml
watchEffect(() => {
  valueHtml.value = props.modelValue
})

// 当 valueHtml 变化时，自动告诉父组件
watch(valueHtml, (newHtml) => {
  emits('update:modelValue', newHtml)
})

// 模拟 ajax 异步获取内容
// onMounted(() => {
//   setTimeout(() => {
//     valueHtml.value = '<p>模拟 Ajax 异步设置内容</p>'
//   }, 1500)
// })

// 上传文件
const toolbarConfig = {}
const editorConfig = {
  placeholder: '请输入内容...',
  MENU_CONF:{
    uploadImage: {
      server: 'http://localhost:8080/admin/upload',
      fieldName: 'file',
      customInsert: (res, insertImg) => {
        const url = res.msg
        insertImg(url)
      }
    }
  }
}

// 组件销毁时，也及时销毁编辑器
onBeforeUnmount(() => {
  const editor = editorRef.value
  if (editor == null) return
  editor.destroy()
})

const handleCreated = (editor) => {
  editorRef.value = editor // 记录 editor 实例，重要！
}
</script>

<template>
  <div style="border: 1px solid #ccc">
    <Toolbar        style="border-bottom: 1px solid #ccc"
                    :editor="editorRef"
                    :defaultConfig="toolbarConfig"
    />
    <Editor        style="height: 200px; overflow-y: hidden;"
                   v-model="valueHtml"
                   :defaultConfig="editorConfig"
                   @onCreated="handleCreated"
    />
  </div>
</template>

<style scoped></style>